Air to Water Heat Pump with Carbon Dioxide Refrigerant

Customization:	Available
Energy Efficiency Grade:	One
Heat Temperature:	80-90°C

Basic Specifications

Model NO.

8ZW

Work Environment

Low-temperature Heat Pump

Heat Source

Air-source

Heating Type

Multi-power Heat

Application

Villa Family, Sauna and Swimming Pool, Hotels, Factory Hospital, Student Apartments, Beauty Salons

Certification

CE, CCC, RoHS

Set Temp

50~90°C

Control

Carel

PCB Circuit

Inverter

Water Pump

Nidec

Transport Package

Wooden Box

Compressor

Panasonic

HS Code

8415812000

Production Capacity

2000/Year

Product Description

✓

Inverter Technology: This is a CO2 heat pump water heater utilizing advanced Inverter technology for optimized performance.

✓

Natural Refrigerant: Uses CO2 (R744), the next-generation refrigerant which is non-flammable, non-toxic, and natural.

✓

Extreme Low Temp Performance: Can operate efficiently at -25°C with a high COP, eliminating the need for auxiliary heaters in cold regions.

✓

High Temperature Output: Capable of producing water temperatures up to 85°C, meeting special requirements that EVI or standard heat pumps cannot achieve.

✓

Energy Saving: Full inverter system (both compressor and motors) ensures maximum energy efficiency.

Advantages of CO2 (R744) Refrigerant

Eco-Friendly: Climate-neutral R744 refrigerant with GWP = 1 and ODP = 0. No contribution to the greenhouse effect or ozone depletion.

Safety First: Classified under Safety Group A1—non-toxic, non-flammable, and thermally stable.

Sustainable: No disposal or recycling requirements and no availability constraints.

Technical Specifications Data

Model			7ZW	8ZW	14ZW	25ZW	40ZW	50ZW	75ZW	120ZW
Standard Condition (20°C)	Heating Capacity	kW	6.8	7.8	13.6	24	40	51	75.5	125.4
	Power Input	kW	1.51	1.7	3	5.3	9	11.3	16.7	26.6
	COP	W/W	4.5	4.58	4.6	4.5	4.4	4.5	4.5	4.7
Low Temp Condition (7°C)	Heating Capacity	kW	5.8	7	12.1	20	35	45.6	64	95
	Power Input	kW	1.47	1.7	3	5	9.4	12	16.8	24.3
	COP	W/W	3.9	4.1	4.1	4	3.7	3.8	3.8	3.9
Max Water Temp		°C	95
Ambient Temp Range		°C	-25 to 43
Refrigerant Type		-	R744 / CO2
Noise Level		dB(A)	40	42	45	46	49	50	54	65

Frequently Asked Questions

What is the maximum water temperature this heat pump can provide?

The CO2 inverter heat pump can achieve a maximum output water temperature of 95°C, making it suitable for high-temperature industrial and commercial requirements.

Can this unit work in extremely cold climates?

Yes, the system is specifically designed for low-temperature environments and can operate efficiently in ambient temperatures as low as -25°C.

Why is CO2 (R744) considered an eco-friendly refrigerant?

CO2 is a natural refrigerant with a Global Warming Potential (GWP) of 1 and an Ozone Depletion Potential (ODP) of 0. It is non-toxic and non-flammable, making it a sustainable alternative to synthetic refrigerants.

Does the system require an auxiliary electric heater?

Thanks to the high COP and the properties of CO2 refrigerant, this system generally does not require an auxiliary heater even in low-temperature areas.

What are the main applications for this heat pump?

It is ideal for a wide range of applications including villas, hotels, hospitals, student apartments, factories, beauty salons, and swimming pool heating.

What components are used in the inverter system?

The system features high-quality components including a Panasonic inverter compressor, Nidec water pump, and Carel control systems for maximum reliability and efficiency.